iaea human health series publications - SEDIM

— The difference between the maximum and minimum luminance measurements taken on the TG18-UNL10image is not within 30% of their mean.— The difference between the maximum and minimum luminance measurements taken on the TG18-UNL80image is not within 30% of their mean.— Bright or dark regions, scratches and/or bright or dark pixels are noticeable when viewing theTG18-UNL10 or TG18-UNL80 image.(2) If the distance or size measuring tool does not measure the size of the physical square accurately, it will benecessary to configure the workstation to correctly indicate object sizes or to provide explanatory labelling.8.10.1.7. Time frame for corrective actionImmediately: Corrective action should be taken before any further patient images are read. If the monitorbeing evaluated is on a review workstation, acquisition does not need to be stopped, unless repair cannot beachieved within four working days and no other approved review workstations are available for imageinterpretation.Note: Failure of a review workstation monitor test does not mean that patient image acquisition must cease,only that interpretation of patient images using that monitor must cease until the problem is corrected.Failure of the acquisition workstation monitor requires the cessation of patient imaging, unless thereview workstation is located close enough to the acquisition workstation that each image can bechecked before the next is taken.124